It would have been fairly easy to run it without the wideband, it would throw a code and complain, but it should be running just off of the base tables in open loop form, and sometimes it's going to go too lean because it can't tell how it's doing without the feed back, therefore killing the engine.
Given they said they did not connect the up stream o2 sensor because the wires weren't long enough it sure sounds like the wideband was either not connected at all, or it was placed in the down stream position where it was useless.
This combined with the abuse did the car in.
I should have said it would run like shit. Bu you get my gyst
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